phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'a8f53871787648f8a236d308125831fa' for key 'PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a8f53871787648f8a236d308125831fa', -1, 1755998399, 1755998399, 'd849d81a', 42, 0, 0)

Line : 187
File : sessions.php